华鲮肌肉营养成分与品质的评价

利用常规肌肉营养测试方法测定分析16尾华鲮(Sinilabeo rendahli)的肌肉营养成分。结果表明:华鲮肌肉(鲜样)中各成分的质量分数分别是蛋白质16.69%,脂肪2.91%,水分77.90%,灰分1.82%,无氮浸出物0.68%。肌肉中含有19种氨基酸,总量为56.52%(质量分数,脱脂干样),其中8种人体必需氨基酸总量是25.81%,占氨基酸总量的45.67%;其必需氨基酸的构成比例基本符合FAO/WHO的标准。华鲮的必需氨基酸指数(EAAI)为57.37。脂肪酸中EPA与DHA质量分数分别为7.41%、28.53%,均比其他一些经济鱼类高,微量元素比值合理。

Evaluation of Nutritional Components and Nutritive Quality in Muscle of Sinilabeo rendahli

Nutritional components in the muscle of 16 pond-cultured Sinilabeo rendahli individuals were analyzed in common methods.The results showed that contents of crude protein,crude fat,moisture,ash and carbohydrates of fresh muscles were 16.69%,2.91%,77.90%,1.82%,and 0.68% respectively.The composition of amino acids in muscle was 19 amino acids,of which 8 were essential for human.In dry matter of muscle,the total content of amino acids was 56.52%;the content of essential amino acids was 25.81%;the percentage of essential amino acids in total amino acids were 45.67%.The constitutional rate of the essential amino acids accorded with the FAO/WHO standard basically.According to nutrition evaluation in amino acids score(AAS)and chemical score(CS);the essential amino acid index(EAAI)was 57.37.The contents of EPA and DHA in fatty acids were 7.41% and 28.53%,which were higher than some other economic fish.The composition of trace elements of Sinilaben rendahli was reasonable.